Culvert.



A. MUINTYRB.

ULVBRT.

APPLICATION FILED JULY 2B, 1909.

' 954,202. Patented Apr.5,191o.

monzw n GRAHAM C0, Pnorevu'luonnnmms. wAsnlNtsmu, n.0

UNITED STATES PATENT OFFICE.

ARCHIBALD MCINTYRE, OF CROSWELL, MICHIGAN.

CULVERT.

To all whom it may concer/n:

Be it known that I, ARCHIBALD McIN'rYnE, a citizen of the United Statesof America, residing at Croswell, in the county of Sanilac and State ofMichigan,have invented certain new and useful Improvements in Culverts,of which the following is a specification, reference being had thereinto the accompanying drawings.

The invention relates particularly to a sectional metallic culvertformed of corrugated met-al, and consists in the construction of theculvert, in the manner of uniting the sections, and in the peculiar'arrangement and combination of parts as more fully hereinafter setforth.

In the drawings,-I `igure 1 is a perspective view of two adjoiningculvert sections detached, showing the formation of the joint; and F ig.2 is a section, partly in elevation and partly in vertical longitudinalsection, showing the sections assembled.

In the drawings thus briefly described, A designates one of the culvertsections, formed from a sheet of corrugated metal, and B a complementarysection. Each section is made by bending a sheet of metal into tubularform, uniting the edges preferably by rivets as a, and the corrugationsare adapted to extend circumferentially as shown, forming a corrugatedbody proper, and cylindrical smooth ends C preferably of less diameterthan that of the body. 'lhe cylindrical portions are elongated so as toform an extended bearing surface, and are so fashioned that thecylindrical port-ion of one culvert section will engage telescopicallywith the corresponding cylindrical portion of the complementary section,as shown in Fig. 2.

I preferably provide a bearing member, as E, in the form of an annularflange upon one of the meeting end portions, which is adapted to engagethe body of the complementary section beyond its cylindrical endportion, forming a stop or abutment for preventing further telescopingof the culvert members. I also may and preferably do provide acomplementary stop member, as F, in the form of an annular flangeadapted to bear upon the body of the opposite member or section and toserve the same purpose and function as the flange E.

Specification of Letters Patent.

Application led July 26, 1909.

Patented Apr. 5, 1910. serial No. 509,604.

A culvert thus constructed may be cheaply manufactured, the sectionsreadily assembled, and by reason of the elongated cylindrical engagingportions the culvert inembers when in place will be held one to theother without the necessity of securing de vices, such as rivets orbolts heretofore employed.

Vhat I claim as my invention is,-

1. In a culvert, the combination of two adjoining culvert sectionshaving circumferentially corrugated body portions and elongatedcylindrical telescoping ends, and a member upon one of the section endsengaging the body of the complementary section inwardly beyond itscylindrical portion.

2. In a sectional culvert, the combination of two adjoining culvertsections having eircumferentially corrugated body portions and elongatedcylindrical meeting ends of less diameter than the bodies, the endsengaging one within the other, and an annular flange upon one of thesection ends engaging the body of the complementary section inwardlybeyond its cylindrical portion.

3. In a culvert, the combination of two adjoining culvert sections,comprising each a circumferentially corrugated body and elongatedcylindrical end portions of less diam* eter than the body, one of thecylindrical ends of each section having an inturned angular flange andthe other engaging end an outwardly flaring flange, the said flangesbeing adapted to engage the bodies of adjoining sections beyond theircylindrical portions.

4. In a culvert, the combination of two adjoining culvert sectionshaving corrugated body portions and elongated smooth telescoping ends,and a member upon one of said section ends engaging the body of thecomplementary section inwardly beyond its smooth portion.

In testimony whereof I affix my signature in presence of two witnesses.

ARCHIBALD MCINTYRE.

lVitnesses:

PHILIP L. GRAHAM, HENRY MATTHEWS.

